Rim tool



Dec. 18, 1928.

F. H. WEBSTER RIM TOOL Filed Dec. 14, 1927 I gwomtoz 50/70: A l'kazr'sum,

Patented De'c.18, 1 928. I i

UNIT ED. STATES:

FRANCIS H. WEBSTER, OF ST. LOUIS, MISSOURI.

[RIM Tool. j

. Application filed December 14, 1927. sem No. 239,928.

for the same purpose and my present application is in part acontinuation of the above mentioned application, but discloses teatnres'not shown in my earlier application. One of theobjects of my;present'invention 'is to provide means for eliminating in- "juryto thevalve stem' of a'tire mountedon the rim and to hold the valve stem insuch position that it will not interfere with the operation of the tool.U v

Another object of my invention 'is to provide operating arms which arestrong enough to resist heavy stresses, butynot too clumsy to packreadily, also to mount ma nipulating means on such arms'so that therewill be no tendency to twist thearms from their normal position. 7 Theseand other detail objectsof my invention are attainedin the structureshown in my accompanying drawings in which V Figure 1- is asideelevation of arimfin its normal condition with my tool applied thereto;r'eadyto be operated tobreal: the rim and 'I indicate a tire appliedtothe rim. p

Figure 2 is a transversesection taken approximately on the line 2-2 ofFigure 1.

Figure 3 is a detail side elevation showing the joint broken.

Figured is asimilar elevation ends of the rim-over-lapped.

The rim indicated at 1 is of any ordinary type and is split as indicatedat 2. the 3 is carried by the'rim in the usual manner and includes atube 4 having a valve stem 5. 'My tool comprises two arms 6 and. 7, eachconsisting of spaced bars,6 and-6 and 7" and 7*, respectively, At theirupperends, these bars are. disposed as .indicatedin'Figure 2, so thatthe'bars of one arm are spaced showing the apart by one of the bars ofthe other'arm and all of thefbars are 'pivotally'connected by a suitablebolt 8."

The lower end ofeach arm 6 and 7, mounts a jaw device shown asincludinga'screw 9 extending transversely of the arm bars, and throughrespective blocks, 10 and 11. The screw hasa thrustbearing'in block 11and is threaded into block 10 .sothat'when rotated it can move theblocks to and'from each other. -Each block mounts a pair of jaws 12by'means of a pi'nj'13. A projec-- tion let, the pivoted end of each aw12 is adapted to contact with the inner face of rim: 1 to limitpivotalinovement of the jaw on pin 13' in one direction. v'lhejaws aremovable independentlyof each other so that when the blocks are forcedtowards each otherea ch jaw 12 clamp portion of the "im 1independentlyof the other jaw and this arrangement insures a tight gripon the rim irrespective ofirregularities in the rim flange.

After the jaws have been applied to'the rim, the joint may be broken bymeans of the lever 15. detachably and pivotally mounted enarm .7 by pin241. and'having one end 16,v

bent dowiiwardly to engage one end of the rim and having its other endprovided with g i 1 ,695,403 P E OFFicE..

a s new 17 extending radiallyg-ofthe rimyto.

engage the other end er the'rim. Rotation of screw 17 .to'theriglitwill.force mat,

and the portion'of the riin 'engaged by the correspondingjaw device,upwardly and will force the other end of the rim-fdownwardly to theposition-showninFigure S. Arms 6 and 7 have respective b1ocks'18 and 19'trunnionedfreely" therein and a screw 20 is threaded ,thr0ughblock'18and hasa thrust bearing in block 19. .lVhen the parts are inthe positionshown 1n'F1gure' 3,

rotation of screw 20 to the left'will draw the arms Ganfd 7, and theends of the rim to the position shownin Figure & in which the diameterofthe rim is so reduced thatthe the 3 may beeasily removed. v j i f Screws9,117 and 20, are ,jn'ovided with similarly shaped heads and a ratchetwrench 21 fitting any of theseheade facilitates the rotation of thescrews. f

.WVhen the device is first applied to a rim, a

thin strap 22, preferably of spring material, may he slipped, under thelower end of bars 6 and (3", and a cup element 2'3 on one end of strap22 may be-slipped over 7 the valve'stem' 5 so as to protect the threadsof the latter and depress the valve to position it outside of: the innerperiphery of the rim which is engaged by the downtnrned end 16 oflever-15.

As the lower ends of arms-6.- and 7, are drawntogether the lower end ilever'I15 may-ride over the end of strap 22 and the end X of the rimwill move over the inner periphery of the'otherf end-of the rim. I

rim are over-lapped to a small extent, screw 17 may be rotated to thelegitanel lever 15 moved from arm 7 so that further movement ofarm 7towardsarm 6 will not be, interi'crred with man extent by lei er 15 e Asarms 6 and? drawn, towards eacl' other tlie upper portions of theirrespective bars ovcrl'ap or nest with each other. The double bearing forthepivot bolt 8 avoids any twist siich as would result it a single barwere used for each arm as is illustrated in my above mentionedapplication. Also thepnll produced by screw 2033 applied to the barswithout twisting them, due to the provision of the doublebars and ofspaced bearings l'or'the trunnioiis of each block. p The moiinting ofblocks 10 and 11 on the respective arms 6 and? by means of screw 9 issir ch that the blocks on one arm do not necessarilyfoccupy the sameposition transversely ofthe rim as isoccupied by the blocks on theotherarm and this accommodates the interengaging arrangement of the upperportionsof the barsfifi 6 7, and 7h tint ficient playwillfhe providedfor the trunnion blocks 18' and 19, to similarly accommodate thenecessary off-setting of the arm bars transve nsely of the rim. p p Itwill be understood that. when a is to beapplied'to the ri1n,theoperations described abovemay bereversed and therim forced to itsnormalposition asshown in Figure 1.

It may notalw'ays be necessary to use lever laand screw l7 tobreal; therim joint and the user of the tool maybe able to pivot the two armsabout the lo wer endof arm (Shy merely pulling to the left on the upperends of the arms. This will depend upon the strength of the riser andthe stillness olthe rim. When the. joint can be broken by merely pullingon the arms, the lever 15 and screw 17 would only be in the way so Ishow the same readily detachable by being slid oil of the mounting pin24 provided on bare 7 and .7". v

The heads o1". screws 9, l7, and QU rn-ay be provided with wings adaptedto be engaged by tlie fingers and thumb of the nser and many otherdetails of my invention may be varied without departing from the spiritthereof and I contemplate the exclusive use ot all modifications whichcome within the scope of my claims.

I claim: a p i 1. In arin tool, means for overlapping the endsof a splitrim; and a member controlled hy said means for holding a "tire valvestem outside of the rim.

In a rim-tool, respective elements for grippmg the ends of a split runand moving them tooverlapeach other, and mean 1novable along the riinrelative to one at said elements and held by said latter mentionedelement loepesin'oniag a tire valve stem outside of the rim.

3.111 a rim'tool, a member for engaging one end of a rim and includingan element extending transversely of: the inner face of the rim butspaced sli htly therefrom, and a strap extending long tidin'ally eta-1erim throngh said space and haying portions held bysaid element inContact a spaced points with said rim face, and a 'ali 'e steinen ahing:element on one of said strap porti" is and, adapted to project tl'irongh an opening in said rim. 4 y e a rim tofol; respective nie'nibegrasping the ends of a rim' n ieans drawing;

said members towards each other so that the rim ends overlap each other,and a member held in positifon byeaid means iorholding a the valve stemoutside of the'onte rmo'st rim end. I

V 5. In a, rim tool, respective flamers tor gripping the ends of a rim,a strap assbjciated with one of said members and extend int: along); therim under oiie end or the latter and provided with an ontwardly facingcnp' adapted to project through an opening. in the rim to engage a tirevalve stem, and a lever mounted intermediate of its ends on the other ofsaid members with one end adapted to slidingly engage the inner face ofsaid strap or adjacent faceof the rim, and

means cooperating th said lever to manipulate the same to break the rimjoint.

In a jrinrtool, a manipulating arm, opposed rim engaging jaw devicesmounted on the end of sai darm and adapted to engage opposite edges or"a rim, each device having a plurality of independentlyndovable jaws,and. means for forcing the respective jaws of said devices towards eachother.

7. In a rinrtool, a m'anipnlatihg ja -m, a screw element extendingtransversely through arm, spaced members ca-i ied by said. element, oneof saidlmembers having arotatable thrnst hearing on said element and theother of said members having a threaded engagement with said element. aplurality of awe pivoted on: at least o'ne of said members; and meanslimiting the pivotforcing said opposed-devices towards each other.;

19. In a rim tool a manipulating arm, oppo d Hm na e s vic s ried b saidarm, each of which devices comprises V screw element extendingtransversely of the a pair of independently movable jaws arranged to bespaced longitudinally of a rim to which the tool is applied, and meansfor drawing said devices towards each other.

10. In a rim tool, a manipulating arm, a

arm,- spaced blocks mounted on said element,

one of which blocks is threaded on said element and the other of whichblocks is rotatable thereon but held against longitudinal movementthereon, jaws freely pivoted on the opposite side of each of saidblocks, each of said jaws including a tooth and a projection spaced fromits tooth for engaging a rim at points spaced transversely of the rim. 7

11. In a rim tool, a pair of arms pivoted to each other near one end ofeach, three or more rim-engaging elements independently pivoted on theother end of each of said arms to swing transversely of the rim to whichthe tool is applied, certain of said elements being opposed to other ofsaid elements on the same arm, a devicefor drawing saidopposed elementstoward each other, and means mounted on one of said arms but removabletherefrom independently of said elements and said device and adapted toengage a rim on opposite sides of said joint to offset the rim endsradially of the rim.

In testimony'whereof I hereunto aflix my signature this 9th day ofDecember, 1927. FRANCIS H. WEBSTER,

